(TT6221-1 / TT6222-1) Remote Control Transmitter

www.DataSheet4U.com TT1589(TT6221/TT6222) Consumer TT6221-1 & TT6222-1 REMOTE CONTROL TRANSMITTER General Description TT6221-1 and TT6222-1 are high performance remote control transmitter COMS IC¡A it is specially designed for use on infrared remote control applications¡C The custom codes (Max.) of TT6221-1 and TT6222-1 are available by setting external diodes and resistors¡C The transmission code consists of “ leader pulse “¡B ” 16 bits custom code “ and ” 16 bits data code “¡C Feature Description High performance CMOS technology Low power consumption ( VDD = 2.0 ¡ã 3.3 V ) TT6221-1 : 32 function keys and 3 double action keys and 64 + 6 function codes are available ( Using D7 pin ) TT6222-1 : 64 function keys and 3 double action keys and 128 + 6 function codes are available ( Using D7 pin ) PPM ( Pulse Position Modulation ) code method Ceramic resonator frequence 455 KHz DOUT with a 38 KHz carrier for IR medium Custom codes can be selected ( Using external diodes and resistors ) Block Diagram X1 X2 DOUT LED Oscillator Divider Data select & Buffer R1 R8 Keyboard Matrix & Gate Circuit Data ROM & Registers Timing Generate Counter control Sync. circuit Binary Detector C1 C8 AIN D7 VDD VSS e 1 of 11 Pga Ver.¡G 1.0 www.DataSheet4U.com TT1589(TT6221/TT6222) Consumer Package configuration TT6221 1 2 3 4 5 6 7 8 9 10 R1 R2 R3 R4 DOUT VDD D7 X2 X1 VSS TT6221-1 AIN C1 C2 C3 C4 C5 C6 C7 C8 LED 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 11 12 TT6222-1 TT6222-1 TT6222 R3 R4 R5 R6 R7 R8 DOUT VDD D7 X2 X1 VSS R2 R1 AIN C1 C2 C3 C4 C5 C6 C7 C8 LED 24 23 22 21 20 19 18 17 16 15 14 13 Pin Description TT6221-1 TT6222-1 PIN No. PIN No. 3 1 4 2 3 4 5 6 5 7 6 8 7 9 8 10 9 10 11 12 13 14 15 16 17 18 19 20 1 2 11 12 13 14 15 16 17 18 19 20 21 22 23 24 PIN Name R3 R4 R5 R6 R7 R8 DOUT VDD D7 X2 X1 VSS LED C8 C7 C6 C5 C4 C3 C2 C1 AIN R1 R2 I/O I I I I I I O P I O I P O I/O I/O I/O I/O I/O I/O I/O I/O I I I DESCRIPTION Row control for keyboard matrix ( active high ) Row control for keyboard matrix ( active high ) Row control for keyboard matrix ( active high ) Row control for keyboard matrix ( active high ) Row control for keyboard matrix ( active high ) Row control for keyboard matrix ( active high ) Serial data output with 38 KHz carrier Positive power supply Data code D7 setting 455 KHz resonator oscillator output 455 KHz resonator oscillator input Negative power supply Indicator LED output Column control for keyboard matrix Column control for keyboard matrix Column control for keyboard matrix Column control for keyboard matrix Column control for keyboard matrix Column control for keyboard matrix Column control for keyboard matrix Column control for keyboard matrix Low byte of custom codes ( 8 bits ) scan input Row control for keyboard matrix ( active high ) Row control for keyboard matrix ( active high ) e 2 of 11 Pga Ver.¡G 1.0 www.DataSheet4U.com TT1589(TT6221/TT6222) Consumer Functional Description¡G Keyboard scan TT6221-1 and TT6222-1 Stay in the stand-by state , the oscillator is OFF and the standby current < 1uA ¡C The TT6221-1 consists of 32 function keys and TT6222-1 consists of 64 function keys¡C The keyboard form of the TT6221-1 & TT6222-1 are as shown¡C The TT6221-1 keyboard form : C1 R1 R2 R3 R4 K11 K21 K31 K41 C2 K12 K22 K32 K42 C3 K13 K23 K33 K43 C4 K14 K24 K34 K44 C5 K15 K25 K35 K45 C6 K16 K26 K36 K46 C7 K17 K27 K37 K47 C8 K18 K28 K38 K48 The TT6222-1 keyboard form : C1 R1 R2 R3 R4 R5 R6 R7 R8 K11 K21 K31 K41 K51 K61 K71 K81 C2 K12 K22 K32 K42 K52 K62 K72 K82 C3 K13 K23 K33 K43 K53 K63 K73 K83 C4 K14 K24 K34 K44 K54 K64 K74 K84 C5 K15 K25 K35 K45 K55 K65 K75 K85 C6 K16 K26 K36 K46 K56 K66 K76 K86 C7 K17 K27 K37 K47 K57 K67 K77 K87 C8 K18 K28 K38 K48 K58 K68 K78 K88 Transmission codes When one of the keys ( 32 keys or 64 keys ) is triggered over 36 ms¡A the oscillator is enable and the IC is activated¡C If the key is pressed and held for 108 ms or less¡A the 108 ms transmission codes of the TT6221-1 & TT6222-1 consist of a 9 ms header code,a 4.5 ms off code¡A 16-bits custom codes ( 18 ms ¡ã 36 ms )¡A 8-bits data codes ( 9 ms ¡ã 18 ms ) and the inverse codes of the 8-bits data codes ( 18 ms ¡ã 9 ms )¡C After the pressed key is held for 108 ms¡A if the key is still held down¡A the transmission codes turn out to be a composition of header code ( 9 ms ) and off code ( 2.5 ms ) only¡C e 3 of 11 Pga Ver.¡G 1.0 www.DataSheet4U.com TT1589(TT6221/TT6222) Consumer The following is an illustration of the transmission codes: Key input Key Enables 36 ms min Fosc = 455 KHz X2 4.5 ms 2.25 ms 38 KHz 1/3 duty carrier 2.25 ms DOUT 9 ms 45 ms - 63 ms custom & data code 108 ms 9 ms 9 ms 0.56 ms 0.56 ms 108 ms Output format for the DOUT The output code carrier ( 38 KHz ) of the DOUT pin : 38 KHz Carrier 8.77 us 26.3 us 38 KHz carrier form The transmission codes employ the PPM ( Pulse Position Modulation ) method to represent their two logic states by bit-0 ( 1.12 ms ) and bit-1 ( 2.24 ms ) : bit-0 0.56 ms data period ( 1.12 ms ) 38 KHz carrier bit-1 0.56 ms data period ( 2.24 ms ) 38 KHz carrier bit-0 and bit-1 Logic states form e 4 of 11 Pga Ver.¡G 1.0 www.DataSheet4U.com TT1589(TT6221/TT6222) Consumer To set the custom codes ( A0 - - - A15 ) The algorithm rule of the custom codes ( A0 - - - A15 ) can be selected by mask option¡A and the user can choose the TT6221-1 & TT6222-1¡C The TT6221-1 & TT6222-1 : The value of ROM1 (8 bits) & ROM2 (8 bits) are both “ 00H “¡C The A0 - - A7 are set by logical OR between the switches (S0 - - S7) and ROM1¡C The A8 - - A15 equal some bits be inverted of A0 - - A7¡A the inversion are decided by logical OR between the switches (S8 - - S15) and ROM2¡C For example : AIN C1 200K 200K TT6221-1 & TT6222-1 C2 200K C3 200K C4 200K C5 200K C6 200K C7 200K C8 S8 S0 1N4148 S9 S1 1N4148 S10 S2 1N4148 S11 S3 1N4148 S12 S4 1N4148 S13 S5 1N4148 S14 S6 1N4148 S15 S7 1N4148 1 : Switch close External switch S0 - - - S15 : → 0 1 0 S0 - - S7 1 0 1 ROM1 0 0 0 0 : Switch open 0 0 1 1 S8 - - S15 0 0 0 1 ROM2 0 0 0 0 0 On chip ROM1¡A ROM2 : → 0 0 0 0 0 0 0 0 0 0 A0 - - A7 : → (S0 - - S7) OR ROM1 0 1 0 1 0 1 0 0 (S8 - - S15) OR ROM2 1 1 0 0 0 1 0 0 x x ↓ ↓ ↓ x ↓ ↓ 1 : non-inversion 0 : inversion A0 A1 A5 A2B A3B A4B A6B A7B A8’ - - A15’ : → A8 - - A15 : → A0 - - A7 1 0 1 0 1 1 0 1 1 1 1 Custom codes A0 - - - A15 : → 0 1 0 0 0 0 1 A8 - - A15 1 0 1 1 1 1 The vaules of the data codes ( D0 - - D7 ) The TT6221-1 contains 32 function keys and the TT6222-1 contains 64 function keys¡C Each key corresponds to one data code¡C The TT6221-1 & TT6222-1 provide 3 double keys¡C e 5 of 11 Pga Ver.¡G 1.0 www.DataSheet4U.com TT1589(TT6221/TT6222) Consumer DATA CODES D0 - - - - - - - - - - D6 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 1 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 0 0 0 1 0 1 0 0 0 1 1 0 1 0 0 0 0 0 1 1 0 0 0 1 0 1 1 0 0 0 0 1 1 1 0 0 0 1 1 1 1 0 0 0 1 0 1 0 1 1 0 0 1 1 0 1 1 0 KEY NAME K15 K25 K35 K45 K16 K26 K36 K46 K17 K27 K37 K47 K18 K28 K38 K48 K16+K46 DATA CODES D0 - - - - - - - - - - D6 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 1 0 0 1 0 0 1 1 0 0 1 0 0 0 0 1 0 1 0 0 1 0 1 0 1 0 0 0 1 1 0 1 0 0 1 1 1 0 1 0 0 0 0 0 1 1 0 0 1 0 0 1 1 0 0 0 1 0 1 1 0 0 1 1 0 1 1 0 0 0 0 1 1 1 0 0 1 0 1 1 1 0 0 0 1 1 1 1 0 0 1 1 1 1 1 0 0 1 1 1 0 1 1 0 The TT6221-1 data codes : KEY NAME K11 K21 K31 K41 K12 K22 K32 K42 K13 K23 K33 K43 K14 K24 K34 K44 K16+K26 K16+K36 D7 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 D7 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 The TT6222-1 data codes : KEY NAME K11 K21 K31 K41 K12 K22 K32 K42 K13 K23 K33 K43 K14 K24 K34 K44 K51 K61 K71 K81 K52 K62 K72 K82 K53 K63 K73 K83 K54 K64 K74 K84 K16+K26 K16+K36 DATA CODES D0 - - - - - - - - - - D6 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 1 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 0 0 0 1 0 1 0 0 0 1 1 0 1 0 0 0 0 0 1 1 0 0 0 1 0 1 1 0 0 0 0 1 1 1 0 0 0 1 1 1 1 0 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 0 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 D7 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 KEY NAME K15 K25 K35 K45 K16 K26 K36 K46 K17 K27 K37 K47 K18 K28 K38 K48 K55 K65 K75 K85 K56 K66 K76 K86 K57 K67 K77 K87 K58 K68 K78 K88 K16+K46 DATA CODES D0 - - - - - - - - - - D6 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 1 0 0 1 0 0 1 1 0 0 1 0 0 0 0 1 0 1 0 0 1 0 1 0 1 0 0 0 1 1 0 1 0 0 1 1 1 0 1 0 0 0 0 0 1 1 0 0 1 0 0 1 1 0 0 0 1 0 1 1 0 0 1 1 0 1 1 0 0 0 0 1 1 1 0 0 1 0 1 1 1 0 0 0 1 1 1 1 0 0 1 1 1 1 1 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 D7 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 The 8-bit data codes of will define the inverse codes of the other 8-bit data codes ( D8 - D15 ) .D7 is defined by an external switch. Code D7=0 -> connect to vdd. e 6 of 11 Pga Ver.¡G 1.0 www.DataSheet4U.com TT1589(TT6221/TT6222) Consumer Code D7=1 -> connect to vss. Function Keys control If two or more keys are depressed simultaneously ( except K16+K26 & K16+K36 & K16+K46 )¡A the transmission is disabled by the multi-depression prevention circuit¡C As regards the key transmission priority in the case of two depressions¡A with simultaneous depressions ( ± 36 ms ) transmission is disabled and first depre